OTHER INCOME, NET (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Other Income, net [Abstract]
Interest income	$ 71,100,000	$ 69,400,000	$ 70,800,000
Gain on sales of investments	40,400,000	17,000,000	11,000,000
Other income	12,800,000	2,600,000	(4,100,000)
Other Income, net	$ 124,312,000	$ 89,033,000	$ 77,667,000